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ODEBUG: free active (active state 0) object: ffff88810a964890 object type: timer_list hint: rose_t0timer_expiry+0x0/0x350
WARNING: CPU: 1 PID: 0 at lib/debugobjects.c:615 debug_print_object+0x16b/0x1e0
Modules linked in:
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:debug_print_object+0x16b/0x1e0
Code: 4c 89 ff e8 e7 cb 52 fd 4d 8b 0f 48 c7 c7 20 42 e3 8b 48 8b 34 24 4c 89 ea 89 e9 4d 89 f0 41 54 e8 7a f6 b2 fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 77 75 d3 0a 48 83 c4 08 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffffc900001e0a10 EFLAGS: 00010292
RAX: 838f4e0b666bcd00 RBX: dffffc0000000000 RCX: ffff8881000f8000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000000 R08: ffff888136624253 R09: 1ffff11026cc484a
R10: dffffc0000000000 R11: ffffed1026cc484b R12: ffffffff8a6ce800
R13: ffffffff8be343a0 R14: ffff88810a964890 R15: ffffffff8b8ce020
FS:  0000000000000000(0000) GS:ffff8881a3c18000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe7f01bbfc8 CR3: 0000000027674000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 debug_check_no_obj_freed+0x3a2/0x470
 kfree+0x112/0x440
 rose_timer_expiry+0x4cb/0x600
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:pv_native_safe_halt+0x13/0x20
Code: 13 e8 02 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 73 27 0e 00 f3 0f 1e fa fb f4 <c3> cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000177de0 EFLAGS: 00000282
RAX: 838f4e0b666bcd00 RBX: ffffffff819683f8 RCX: 838f4e0b666bcd00
RDX: 0000000000000001 RSI: ffffffff8d9b8d8d RDI: ffffffff8be33880
RBP: ffffc90000177f20 R08: ffff888136632f9b R09: 1ffff11026cc65f3
R10: dffffc0000000000 R11: ffffed1026cc65f4 R12: ffffffff8fa39830
R13: 0000000000000001 R14: 0000000000000001 R15: 1ffff1102001f000
 default_idle+0x13/0x20
 default_idle_call+0x74/0xb0
 do_idle+0x1e8/0x510
 cpu_startup_entry+0x44/0x60
 start_secondary+0x101/0x110
 common_startup_64+0x13e/0x147
 </TASK>
